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3 years ago

An architect planned to construct two similar stone pyramid structures in a park. The

Mathematics

2 answers:

kondaur [170]3 years ago

7 0

Answer:

1) Change the length of side AB to 2 feet

Step-by-step explanation:

Given that both structures are similar, it follows that the ratio of their corresponding lengths are equal.

To find out what should be the correct length of AB that she should change to, set up the proportion showing the ratio of 2 corresponding lengths of both structures. Thus:

$\frac{PR}{AC} = \frac{PQ}{AB}$

We will assume AB is unknown.

PR = 7.5 ft

AC = 2.5 ft

PQ = 6 ft

Plug in the values into the equation

$\frac{7.5}{2.5} = \frac{6}{AB}$

Cross multiply

$AB*7.5 = 6*2.5$

$AB*7.5 = 15$

Divide both sides by 7.5

$AB = 2$

The architect should change the length of AB to 2 ft

fenix001 [56]3 years ago

3 0

Answer:

Change the length of side AB to 2 feet

Step-by-step explanation:

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Write each expression as a power, and evaluate.<br>a.) 7x7<br>b.) 3x3x3

avanturin [10]

Answer:

7^2

3^3

Step-by-step explanation:

Exponents signify how many times the base is multiples by itself. In the case of 7x7, 7 is the base and it is being multiplied by twice itself, resulting in an answer of 7^2

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3 years ago

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MatroZZZ [7]

Answer:

y-coordinate= 4

Step-by-step explanation:

y+2= -3( x-4) Solve for y

y= -3( x-4) -2

y= -3x +12 -2

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Now in the given ( _, -2) x=-2

Substitute x= -2 to find the matching y value.

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4 years ago

I need help somebody please

solong [7]

Her pay increases $10.00 fore every hour she works

The slope of the line is 10 because you have to pick two points off of the graph, it doesn't matter what two points, and stick them in the formula: y²-y÷x²-x. Once you work out this formula, you get 10/1 which equals to the slope being 10.

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3 years ago

Luke has 34 cup of sugar to bake cookies. Each cookie needs 112 cup of sugar.

kicyunya [14]

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4 years ago

The grocery store sells kumquats for $3.75 a pound and Asian pears for $2.25 a pound. Write an equation in standard form for the

sveta [45]

Answer:

3.75k + 2.25p = 14

Step-by-step explanation:

The cost from the weights of kumquats can be represented by 3.75k.

The cost from the weights of Asian pears can be represented by 2.25p.

Using the standard form equation, Ax + By = C, replace Ax and By with these terms.

Then, plug in 14 as C:

Ax + By = C

3.75k + 2.25p = 14

So, the equation is 3.75k + 2.25p = 14

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3 years ago